城市活断层探测地球物理方法与危险性评价

城市活断层探测的地球物理方法主要包括人工地震测深、微重力测量、高精度磁测、电法勘探和天然地震观测等。城市活断层地球物理探测的目的是准确查明地表附近活动断层的空间分布，确定其深部延伸情况，探测可能存在的隐伏活动断层，揭示地下介质的特性和深部构造环境，为活断层的地震危险性评价提供依据。

Danger Assessment and Geophysical Exploration Methods for Urban Active Faults

Geophysical exploration methods for urban active faults include seismic sounding, microgravity survey, high-precision magnetic survey, electrical prospecting and seismological observation and so on. Geophysical exploration methods for urban active faults are used for finding out spatial distribution and deep extending of active faults, possible buried faults, deep tectonic environment and assessing seismic danger of active faults.